Patents by Inventor Bruce J. Sabacky
Bruce J. Sabacky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7713504Abstract: A process to produce mixed metal oxides and metal oxide compounds. The process includes evaporating a feed solution that contains at least two metal salts to form an intermediate. The evaporation is conducted at a temperature above the boiling point of the feed solution but below the temperature where there is significant crystal growth or below the calcination temperature of the intermediate. The intermediate is calcined, optionally in the presence of an oxidizing agent, to form the desired oxides. The calcined material can be milled and dispersed to yield individual particles of controllable size and narrow size distribution.Type: GrantFiled: November 28, 2005Date of Patent: May 11, 2010Assignee: Altair Nanomaterials, Inc.Inventors: Bruce J. Sabacky, Timothy M. Spitler, Jan Prochazka
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Patent number: 6982073Abstract: A process to produce stabilized zirconia from a solution of zirconium salt and a stabilizing agent. The zirconium salt may include zirconium oxysulfate, zirconium oxychloride, zirconium oxynitrate, zirconium nitrate, and other water-soluble zirconium salts. The stabilizing agent may include calcium, magnesium, yttrium salts of oxides and rare earth oxides. The process is conducted by evaporation of the solution above the boiling point of the solution but below the temperature where there is significant crystal growth. The evaporation step is followed by calcination to produce the desired nano-sized structure. Further processing by sintering may be applied to produce solid structures or by milling and classification to produce material for thermal spray coating.Type: GrantFiled: November 2, 2001Date of Patent: January 3, 2006Assignee: Altair Nanomaterials Inc.Inventors: Bruce J. Sabacky, Timothy M. Spitler
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Patent number: 6974566Abstract: A process to produce mixed metal oxides and metal oxide compounds. The process includes evaporating a feed solution that contains at least two metal salts to form an intermediate. The evaporation is conducted at a temperature above the boiling point of the feed solution but below the temperature where there is significant crystal growth or below the calcination temperature of the intermediate. The intermediate is calcined, optionally in the presence of an oxidizing agent, to form the desired oxides. The calcined material can be milled and dispersed to yield individual particles of controllable size and narrow size distribution.Type: GrantFiled: September 5, 2001Date of Patent: December 13, 2005Assignee: Altair Nanomaterials Inc.Inventors: Bruce J. Sabacky, Timothy M. Spitler, Jan Prochazka
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Patent number: 6689716Abstract: A process for making microporous structures that can be used as a catalyst support. The microporous structures have high porosity and high thermal stability, combined with good mechanical strength and relatively high surface area. The process is useful for making titanium dioxide for catalyst structures for use for fuel cells, sensors, electrochemical cells and the like.Type: GrantFiled: October 17, 2001Date of Patent: February 10, 2004Assignee: Altair Nanomaterials Inc.Inventors: Bruce J. Sabacky, Timothy M. Spitler
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Publication number: 20030086865Abstract: A process to produce stabilized zirconia from a solution of zirconium salt and a stabilizing agent. The zirconium salt may include zirconium oxysulfate, zirconium oxychloride, zirconium oxynitrate, zirconium nitrate, and other water-soluble zirconium salts. The stabilizing agent may include calcium, magnesium, yttrium salts of oxides and rare earth oxides. The process is conducted by evaporation of the solution above the boiling point of the solution but below the temperature where there is significant crystal growth. The evaporation step is followed by calcination to produce the desired nano-sized structure. Further processing by sintering may be applied to produce solid structures or by milling and classification to produce material for thermal spray coating.Type: ApplicationFiled: November 2, 2001Publication date: May 8, 2003Inventors: Bruce J. Sabacky, Timothy M. Spitler
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Publication number: 20020082167Abstract: A process for making microporous structures that can be used as a catalyst support. The microporous structures have high porosity and high thermal stability, combined with good mechanical strength and relatively high surface area. The process is useful for making titanium dioxide for catalyst structures for use for fuel cells, sensors, electrochemical cells and the like.Type: ApplicationFiled: October 17, 2001Publication date: June 27, 2002Inventors: Bruce J. Sabacky, Timothy M. Spitler
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Publication number: 20020071806Abstract: A process to produce mixed metal oxides and metal oxide compounds. The process includes evaporating a feed solution that contains at least two metal salts to form an intermediate. The evaporation is conducted at a temperature above the boiling point of the feed solution but below the temperature where there is significant crystal growth or below the calcination temperature of the intermediate. The intermediate is calcined, optionally in the presence of an oxidizing agent, to form the desired oxides. The calcined material can be milled and dispersed to yield individual particles of controllable size and narrow size distribution.Type: ApplicationFiled: September 5, 2001Publication date: June 13, 2002Inventors: Bruce J. Sabacky, Timothy M. Spitler, Jan Prochazka
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Patent number: 5348723Abstract: Semiconductor grade tungsten hexafluoride (WF.sub.6) is produced by reacting tungsten metal with a recirculating flow of gaseous WF.sub.6 containing a small concentration of fluorine in a heated reactor. The high purity WF.sub.6 produced is useful for deposition of tungsten metallization in fabricating VLSI integrated circuitry.Type: GrantFiled: February 7, 1990Date of Patent: September 20, 1994Assignee: Bandgap Technology CorporationInventors: Bruce J. Sabacky, Robert E. Doane
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Patent number: 5328668Abstract: Semiconductor grade tungsten hexafluoride (WF.sub.6) is produced by reacting tungsten metal with a recirculating flow of gaseous WF.sub.6 containing a small concentration of fluorine in a heated reactor. The high purity WF.sub.6 produced is useful for deposition of tungsten metallization in fabricating VLSI integrated circuitry.Type: GrantFiled: May 24, 1990Date of Patent: July 12, 1994Assignee: Bandgap Chemical CorporationInventors: Bruce J. Sabacky, Robert E. Doane
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Patent number: 4555387Abstract: A process and system are provided for flash-roasting molybdenum sulfide containing slag-forming constituents. The process comprises feeding a pneumatically suspended stream of particulate molybdenum sulfide and a mixture of fuel and oxidizing gases through a nozzle into a confined furnace chamber, the fuel gas-oxidizing gas mixture exiting from the nozzle being ignited to provide a flame thereof, the flame being maintained at a condition to provide a temperature in the furnace chamber sufficient to oxidize the molybdenum sulfide and form a volatile gas comprising molybdenum trioxide. The temperature is at least sufficient to melt the slag-forming constituents such that the slag formed is sufficiently liquid to separate from the gaseous mixture and collect at a selected portion of said chamber for removal therefrom.Type: GrantFiled: February 27, 1984Date of Patent: November 26, 1985Assignee: Amax Inc.Inventors: Bruce J. Sabacky, Malcolm T. Hepworth
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Patent number: 4551313Abstract: A process and system are provided for flash-sublimation of molybdic oxide containing slag-forming constituents. The process comprises feeding a pneumatically suspended stream of particulate molybdic oxide and a mixture of fuel and oxidizing gases through a nozzle into a confined furnace chamber, the fuel gas-oxidizing gas mixture exiting from the nozzle being ignited to provide a flame thereof, the flame being maintained at a condition to provide a temperature in the furnace chamber in excess of that required to sublime molybdic oxide. The temperature is preferably at least sufficient to melt slag-forming constituents contained in said molybdic oxide such that the slag formed is sufficiently liquid to separate from the gaseous mixture and collect at a selected portion of the chamber for removal therefrom.Type: GrantFiled: February 27, 1984Date of Patent: November 5, 1985Assignee: Amax Inc.Inventors: Bruce J. Sabacky, Malcolm T. Hepworth
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Patent number: 4462822Abstract: A process is disclosed for roasting molybdenite concentrates directly to molybdenum dioxide. The process comprises establishing a roasting zone having a temperature of about 700.degree. C. to about 800.degree. C., introducing into the roasting zone particulate molybdenum dioxide and molybdenite in a weight ratio of at least about 2:1 along with an oxygen-containing gas in amount sufficient to oxidize the sulfur content of the molybdenite to molybdenum dioxide.Type: GrantFiled: November 8, 1983Date of Patent: July 31, 1984Assignee: Amax Inc.Inventors: Bruce J. Sabacky, Malcolm T. Hepworth